TY  - BOOK
AU  - Beyda, William J
TI  - Data communications : from basics to broadband
SN  - 9780131456921
SN  - 200404465
U1  - 004.6 BEY 
PY  - 2005///
CY  - Upper Saddle River, NJ
PB  - Pearson Education Inc
KW  - Data transmission systems
N1  - Includes bibliographical references and index
ER  -